LED Module

Abstract

LED module that features: a cover part (10, 10', 10''); a circuit board part (20, 20', 20'') which is connected to a front side of the cover part (10, 10', 10''); a light-emitting part (30, 30') arranged on a front face of the circuit board part (20, 20', 20'') and electrically connected to the circuit board part (20, 20', 20'') and configured to emit light through a side surface of the light-emitting part (30, 30'); and a panel part (50, 50', 50'', 50'''', 50'''', 50'''') arranged on the front of the circuit board part (20, 20', 20'') comprising a light guide unit with multiple light output parts (57) configured to guide and output light emitted from the side surface of the light-emitting part (30, 30').

Description

Technical field

[0001] The present disclosure relates to an LED module. background

[0002] LED modules are used in a variety of fields, such as vehicle lighting. Fig. Figure 1 is a conceptual view representing a conventional LED module 1. As shown in Fig. As shown in Figure 1, the conventional LED module 1 has a problem: most of the light emitted by an LED 2 travels only to one front side. Therefore, a structure, such as a reflector plate 3, is necessary to direct the light to a side. Consequently, a clearance of 20 mm or more must be ensured, which can increase the overall weight of the LED module. Furthermore, the structure limits the arrangement of the LED module, making it difficult to implement a free-form design.

[0003] Since the conventional LED module directs most of the light only to the front, the brightness of a section where the light mainly collects will also be higher than that of a surrounding section. Fig. Figure 2 is a concept view depicting a vehicle light to which a conventional LED module is applied. As shown in Fig. As shown in Figure 2, it is difficult to ensure a uniform brightness for a light L of a vehicle to which the conventional LED module is applied.

[0004] The state of the art can be found in CN 1 08 990 414 A, CN 1 03 486 494 A, CN 1 04 995 452 A, CN 1 06 461 190 A or US 2013 / 0 264 590 A1. Summary

[0005] The present disclosure was made to solve the aforementioned problems that arise in the prior art, while preserving the advantages achieved through the prior art.

[0006] One aspect of the present disclosure provides an LED module that has a reduced volume and reduced weight.

[0007] Another aspect of the present disclosure provides an LED module that can ensure uniform brightness.

[0008] An LED module according to one aspect of the present disclosure comprises a cover part, a circuit board part connected to a front side of the cover part, a light-emitting part electrically connected to the circuit board part, which is arranged on a front side of the circuit board part and which emits light through one of its side surfaces, and a light arranged on the front side of the circuit board part, and the panel part comprises a light guide unit with multiple light output parts, which guides and outputs light emitted from the side surface of the light-emitting part.

[0009] In another embodiment, the LED module can further comprise a lens part that surrounds the side surface of the light-emitting part and is arranged on a front side of the circuit board part, and an optic can be formed in the panel part which is provided with the lens part and has a fine protrusion shape on its outer surface.

[0010] In another embodiment, the optics may further comprise a second optic which is formed on a front surface of the panel part such that it is recessed towards the side and which directs the light emitted from the side surface of the light-emitting part towards the front.

[0011] In another embodiment, the first optics and the second optics can have corresponding shapes.

[0012] In another embodiment, the first optic can have a shape whose vertical length decreases towards a front face.

[0013] In another embodiment, a vertical length of the circuit board part can correspond to a vertical length of the cover part.

[0014] In another embodiment, the vertical length of the panel part can correspond to the vertical length of the circuit board part.

[0015] In another embodiment, the circuit board part can be white.

[0016] In another embodiment, the LED module can further comprise an outer lens arranged such that it is spaced away from the panel part towards the front.

[0017] In another embodiment, the vertical length of the outer lens can correspond to the vertical length of the panel part.

[0018] In another embodiment, the LED module can further comprise an inner lens arranged between the outer lens and the panel part.

[0019] In another embodiment, the panel part can include a first recess formed on its rear surface such that it is recessed according to a shape of the lens part, and the lens part can be arranged at the first recess.

[0020] In another embodiment, the vertical length of the circuit board part can be smaller than the vertical length of the cover part, the panel part can cover the side surface of the circuit board part, and the first optics can comprise a first area formed on the side surface of the circuit board part and a second area formed on a front surface of the circuit board part and stepped off from the first area.

[0021] In another embodiment, the panel part may further comprise a second recess which is formed on its rear surface such that it is recessed according to a size of the circuit board part, and the circuit board part may be arranged at the second recess.

[0022] In another embodiment, the lens part, viewed from its side surface, can have a shape obtained by cutting an ellipse in half along one of its central axes.

[0023] In another embodiment, the lens part, viewed from its side surface, can have a shape in which a front end of a shape obtained by cutting an ellipse in half along one of its central axes is recessed towards a rear side.

[0024] In another embodiment, a pin element can comprise a head, a pin body formed on one side of the head and passing through the panel part, an extension part extending from the pin body and passing through a mounting hole formed in the cover part, and a mounting projection projecting from an outer surface of the extension part and elastically abutting the cover part.

[0025] In another embodiment, the cover part can comprise a retaining plate which holds the circuit board part and the panel part, and with a mounting hole through which the extension part passes, and the retaining plate can comprise a stepped surface formed on a surface facing the circuit board part, which is formed on a circumferential region of the mounting hole, and an inclined surface formed such that it is inclined at a section where the stepped surface and the mounting hole meet.

[0026] In another embodiment, several mounting projections can be provided such that they are spaced apart from each other along a circumferential direction and / or an extension direction of the extension part, and the mounting projections can extend such that they are inclined further away from an outer surface of the extension part in the direction of the head.

[0027] In another embodiment, the LED module according to the present disclosure can comprise: a cover part in which an insertion hole is formed, a circuit board part connected to a front side of the cover part, a light-emitting part electrically connected to the circuit board part, arranged on a front side of the circuit board part and emitting light through the side surface, and a panel part arranged on a front side of the circuit board part and assembled with the cover part, and in the panel part an insertion projection arranged at the insertion hole can be formed.

[0028] In another embodiment, the cover part can comprise a retaining plate that holds the circuit board part and the panel part, and a side wall that extends from a circumference of the retaining plate towards the panel part, and the insertion projection can be arranged at the insertion hole.

[0029] In another embodiment, an extension hole extending into the insertion hole can be formed in the retaining plate.

[0030] In another embodiment, the cover part can comprise the retaining plate which holds the panel part, and the side wall, which includes a stop hook extending from a circumference of the retaining plate towards the panel part, projects towards the panel part and is configured to be elastically deformed by an external force, and the panel part can be coupled such that it abuts elastically between the stop hook and the retaining plate.

[0031] In another embodiment, the LED module may further comprise an adhesive element that is attached to a surface of the mounting plate facing the panel part and to a surface of the panel part facing the mounting plate.

[0032] In another embodiment, the panel part can comprise a first light guide unit, and the first light guide unit can comprise several light guides that output the light emitted from the side surface of the light-emitting part to the front and are arranged radially with respect to the light-emitting part.

[0033] In another embodiment, each of the multiple light guides can comprise a light input surface into which light is fed from the light-emitting part, and a light output surface from which the light fed into the light input surface is emitted.

[0034] In another embodiment, the light-emitting part can comprise four side surfaces that emit the light, and four light guides can be provided, each corresponding to the four side surfaces.

[0035] In another embodiment, the cross-section of each of the optical fibers can be circular in a direction perpendicular to its direction of extension.

[0036] In another embodiment, the panel part can comprise a second light guide unit, and the second light guide unit can comprise a body part into which the light emitted from the side surface of the light-emitting part is fed, and several light output parts extending from the body part, which emit the light fed into the body part to the front and are arranged radially with respect to the body part.

[0037] In another embodiment, the body part can include a light input surface into which light is fed from the light-emitting part, and each of the multiple light output parts can include a light output surface from which the light fed in by the light input surface is emitted.

[0038] In another embodiment, the second light guide unit can further comprise a deposition surface provided at a corner section where adjacent light output parts meet, on which a material that reflects light is deposited.

[0039] In another embodiment, the light input surface can be divided into several light input parts, each corresponding to several light output parts, and the width of each of the light input parts can decrease towards one end of a corresponding light output part.

[0040] In another embodiment, the light-intake surface can include scattering projections that are repeatedly formed along a circumferential direction of the side surface of the light-emitting part.

[0041] In another embodiment, the light output part can comprise a reflective surface provided on a surface opposite the light output surface, which emits light supplied from the light output surface to the light output surface, and a reflective optic with a fine protrusion shape can be formed on the reflective surface.

[0042] In another embodiment, the LED module may include a reflection unit arranged on a rear side of the light guide unit and configured to reflect the light emitted through the side surface of the light-emitting part to the front side, and the reflection unit may include multiple reflective covers that are separated from each other. Brief description of the drawings

[0043] The foregoing and other tasks, features and advantages of the present disclosure will become more obvious from the following description in conjunction with the accompanying drawings. Fig. Figure 1 is a conceptual view representing a conventional LED module; Fig. Figure 2 is a concept view showing a light for a vehicle to which a conventional LED module is applied; Fig. 3 is a conceptual view representing an LED module according to a first embodiment of the present disclosure; Fig. Figure 4 is a conceptual view representing a light for a vehicle to which an LED module is applied according to a first embodiment of the present disclosure; Fig. Figure 5 is a conceptual view of a light emission pattern where the shapes of a first optic and a second optic are triangular; Fig. Figure 6 is a conceptual view of a light emission pattern where the shapes of a first optic and a second optic are elliptical; Fig. Figure 7 is a view that shows an example of a shape of a lens part; Fig. 8 is a cross-sectional view of Fig. 7; Fig. Figure 9 is a view that presents another example of a lens part shape; Fig. 10 is a cross-sectional view of Fig. 9; Fig. Figure 11 is a view that presents another example of a shape of a lens part; Fig. 12 is a cross-sectional view of Fig. 11; Fig. Figure 13 is a view that presents another example of a shape of a lens part; Fig. 14 is a cross-sectional view of Fig. 13; Fig. Figure 15 is a view that presents another example of a shape of a lens part; Fig. 16 is a cross-sectional view of Fig. 15; Fig. Figure 17 is a view that presents another example of a shape of a lens part; Fig. 18 is a cross-sectional view of Fig. 17; Fig. Figure 19 is a view that presents another example of a shape of a lens part; Fig. 20 is a cross-sectional view of Fig. 19; Fig. 21 is a view that presents another example of a shape of a lens part; Fig. 22 is a cross-sectional view of Fig. 21; Fig. 23 is a conceptual view representing an LED module according to a second embodiment of the present disclosure; Fig. 24 is a concept view representing an LED module according to a third embodiment of the present disclosure; Fig. Figure 25 is a perspective view showing an LED module according to a fourth embodiment of the present disclosure; Fig. 26 is a side view showing a side surface of Fig. 25 represents; Fig. 27 is a perspective view showing an LED module according to a fifth embodiment of the present disclosure; Fig. Figure 28 represents an LED module according to a fifth embodiment of the present disclosure and is a view seen from below. Fig. 27; Fig. 29 represents a modification of an LED module according to a fifth embodiment of the present disclosure; Fig. 30 is a side view of Fig. 29; Fig. 31 represents another modification of an LED module according to a fifth embodiment of the present disclosure; Fig. 32 is a view which represents another modification of an LED module according to a fifth embodiment of the present disclosure; Fig. Figure 33 is a conceptual view representing an LED module according to a sixth embodiment of the present disclosure; Fig. Figure 34 is an enlarged cross-sectional view of Fig. 33; Fig. 35 is a view that represents a state in which a pin element is fitted with a cover part in Fig. 34 is coupled; Fig. Figure 36 is a conceptual view representing an LED module according to a seventh embodiment of the present disclosure; Fig. Figure 37 represents an LED module according to a seventh embodiment of the present disclosure and is a partially enlarged perspective view of Fig. 36; Fig. 38 is a cross-sectional view showing a cross-section of Fig. 37 represents; Fig. Figure 39 represents an LED module according to a seventh embodiment of the present disclosure and is a partially enlarged perspective view of Fig. 36; Fig. 40 is a cross-sectional view showing a cross-section of Fig. 39 represents; and Fig. 41, Fig. 42 to Fig. Figure 43 are views that provide examples of which LEDs are jointly applied according to a sixth embodiment and a seventh embodiment of the present disclosure. Detailed description

[0044] Some embodiments of the present disclosure are described in detail below with reference to the exemplary drawings. When providing reference numerals to constituent elements of the drawings, the same elements may have the same reference numerals even if they are shown on different drawings. Furthermore, in the following description of the present disclosure, a detailed description of known functions and configurations included herein is omitted if it would further obscure the subject matter of the present disclosure. LED module according to the first embodiment

[0045] An LED module according to a first embodiment of the present disclosure relates to an LED module that can be applied to a light for a vehicle or the like. Fig. Figure 3 is a perspective view showing an LED module according to a first embodiment of the present disclosure. Arrows from Fig. 3 can represent paths of light emitted by a light-emitting part. Basic elements of the LED module according to the first embodiment

[0046] As in Fig. As shown in Figure 3, an LED module according to a first embodiment of the present disclosure can comprise a cover part 10, a circuit board part 20, a light-emitting part 30, a lens part 40, and a panel part 50. The circuit board part 20 can be connected to a front face of the cover part 10. The circuit board part 20 can be a general-purpose printed circuit board (PCB). The circuit board part 20 can be white. If the light-emitting part 30, which is described below, is a white LED, high reflectivity of the circuit board part 20 can be ensured, and visibility can be excellent. However, the color of the circuit board part 20 is not limited to this and can be of various colors depending on the color of the light-emitting part 30. For example, if the light-emitting part 30 is a red LED, the circuit board part 20 can also be red.

[0047] The light-emitting part 30 can be electrically connected to the circuit board part 20 and can be arranged on a front face of the circuit board part 20. The light-emitting part 30 can be configured to emit light through one of its side surfaces. In particular, the light-emitting part 30 can have four side surfaces and emit light through the four surfaces described above.

[0048] The lens part 40 can surround the four side surfaces of the light-emitting part 30 and can be arranged on the front of the circuit board part 20. Although Fig. Figure 3 shows that the lens part 40 has a rectangular cross-section; this is a simple example, and the lens part 40 can have various shapes to form a uniform light distribution pattern. This will be described in detail later. The lens part 40 can refract the light emitted by the light-emitting part 30.

[0049] The panel part 50 can have an optic 51 with a fine protrusion on its outer surface. The optic 51 can reflect the light emitted by the light-emitting part 30 at different angles. Several optics 51 can be provided. Although Fig. Figure 3 shows that one size of optic 51 is relatively large; this is for the sake of clarity, and in fact, optic 51 can be a small size compared to the other elements.

[0050] The LED module according to the first embodiment of the present disclosure can further comprise an outer lens 60. The outer lens 60 can be arranged such that it is spaced apart from the panel part 50 towards a front face. The outer lens 60 can act as a cover to protect the internal configurations of the LED module according to the present disclosure from the outside.

[0051] Furthermore, according to the first embodiment of the present disclosure, the LED module can also comprise a housing 70. The housing 70 can be arranged on the rear side of the cover part 10. The housing 10 can act such that it protects the LED module by surrounding the LED module on its rear side.

[0052] That is, if the elements are listed in a sequence from the back to the front, the sequence can be the housing 70, the cover part 10, the circuit board part 20, the light-emitting part 30, the lens part 40, the panel part 50, and the outer lens 60.

[0053] Since, according to the present disclosure, a uniform switching pattern can be implemented while ensuring no additional space for light diffusion in an entire area of ​​the light-emitting part 30, the volume occupied by the LED module can be significantly reduced, as the light is emitted through the side surfaces of the light-emitting part 30.

[0054] Since, according to the present disclosure, the light can also be emitted from the side surfaces of the light-emitting part 30 and the several fine optics 51 reflect the light at different locations and at different angles, a uniform brightness can be ensured.

[0055] Fig. Figure 4 is a conceptual view representing a light for a vehicle to which the LED module according to the first embodiment of the present disclosure is applied. Since the LED module according to the first embodiment of the present disclosure can reflect light at different angles, as shown in Fig. 4, when the LED module according to the first embodiment of the present disclosure is applied to a luminaire, a uniform brightness of the luminaire L' is ensured.

[0056] Since the LED module according to the first embodiment of the present disclosure can also ensure uniform brightness, the number of light sources that need to be arranged in the luminaire for a vehicle can be reduced. <Erste Optik 51a und zweite Optik 51b>

[0057] The optic 51 can include a first optic 51a. The first optic 51a can be provided on a rear surface of the panel part 50 and can be recessed towards the front. The first optic 51a can be configured to reflect the light emitted from the side surface of the light-emitting part 30 in such a way that the light is directed towards the front. The first optic 51a can be not only a single protrusion but also multiple sets.

[0058] As an example, the first optic 51a can have a shape whose vertical length decreases towards the front. For instance, the first optic 51a can have a shape obtained by cutting an ellipse along the y-axis. Alternatively, the first optic 51a can have a triangular shape in which a line parallel to the y-axis forms an edge. However, the present disclosure is not limited to this, and the shape of the first optic 51a can take various forms.

[0059] Furthermore, the optic 51 can include a second optic 51b. The second optic 51b can be provided on a front surface of the panel part 50 and can project towards the front. The second optic 51b can be configured to diffuse the light emitted from the side surface of the light-emitting part 30 such that the light is directed towards the front. The second optic 51b can also be not only a single projection but also multiple sets. Furthermore, the second optic 51b can, of course, also have different shapes of the first optic 51a described above.

[0060] The second optic 51b can have a shape that corresponds to that of the first optic 51a. However, the corresponding shapes here do not necessarily mean the same shape, but can mean similar arrangements according to a specific rule.

[0061] For example, if a triangular shape and a ladder shape of the first optic 51a are arranged alternately, a ladder shape and a triangular shape of the second optic 51b can be arranged alternately.

[0062] Fig. Figure 5 is a conceptual view showing a light emission pattern when the shapes of the first optics 51a and the second optics 51b are triangular. Fig. Figure 6 is a conceptual view representing a light emission pattern when the shapes of the first optic 51a and the second optic 51b are elliptical. As in Fig. 5 and Fig. As shown in Figure 6, the shapes of light-emitting areas A and A' can differ according to the shape of the optics 51. Consequently, a setter can shape the first optics 51a and the second optics 51b differently according to a light emission pattern that is to be produced. <Größenbeziehung von Elementen>

[0063] However, a vertical length of the circuit board part 20 can correspond to a vertical length of the cover part 10. Furthermore, a vertical length of the panel part 50 can correspond to a vertical length of the circuit board part 20. Consequently, a vertical length of the panel part 50 can correspond to the vertical length of the cover part 10.

[0064] Furthermore, the vertical length of the outer lens 60 can correspond to the vertical length of the panel part 50. Consequently, the vertical length of the outer lens 60 can correspond to the vertical lengths of the circuit board part 20 and the cover part 10. <Detaillierte Form des Panelteils 50>

[0065] The panel part 50 can include a first recess 52. The first recess 52 can be formed (or arranged) on a rear surface of the panel part 50 such that it is recessed according to the size of the lens part 40. Here, the correspondence does not necessarily mean coincidence, but can encompass the meaning of a space into which the lens part 40 can be inserted, or more. For example, the first recess 52 can be formed such that no portion protrudes from the panel part 50 when the lens part 40 is inserted and arranged in the first recess 52.

[0066] As an example, how in Fig. Figure 2 shows a shape of the lens part 40 which includes the first recess 52, a shape which is obtained by rotating a U-shape by 90 degrees.

[0067] The lens part 40 can be inserted and positioned in the first recess 52. Since the first recess 52 is designed to correspond to the size of the lens part 40, no section protrudes from the panel part 50 when the lens part 40 is inserted and positioned in the first recess 52.

[0068] Meanwhile, the shape of lens part 40 can be designed in a variety of ways. Fig. Figure 7 is a view that shows an example of a shape of the lens part. Fig. 8 is a cross-sectional view of Fig. 7. Fig. Figure 9 is a view that shows another example of a lens part shape. Fig. 10 is a cross-sectional view of Fig. 9. Below are examples of the shape of the lens part with reference to Fig. 7, Fig. 8, Fig. 9 to Fig. 10 described.

[0069] As an example, the lens part 40, as in Fig. 7 and Fig. 8 shown, seen from one of its side surfaces, has a shape that is obtained by cutting an ellipse in half along its central axis.

[0070] As another example, the lens part 40, as in Fig. 9 and Fig. 10, shown, viewed from one of its side surfaces, has a shape in which a front end of a shape obtained by cutting an ellipse in half along its central axis is recessed towards a back. If the lens part 40 is in Fig. 9 and Fig. The 10 shapes shown are advantageous for removing a hot spot and ensure high uniformity of light.

[0071] However, Fig. 7, Fig. 8, Fig. 9 to Fig. 10 simple examples of the shape of the lens part, which can be modified in many ways according to the needs of a general technician.

[0072] Fig. 11, Fig. 13, Fig. 15, Fig. 17, Fig. 19 and Fig. 21 are views that show other examples of a lens shape of the lens part. Fig. 12, Fig. 14, Fig. 16, Fig. 18, Fig. 20 and Fig. 22 are cross-sectional views of Fig. 11, Fig. 13, Fig. 15, Fig. 17, Fig. 19 and Fig. 21. Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19, Fig. 20, Fig. 21 to Fig. 22 are views that represent diverse, modifiable examples of the lens part.

[0073] For example, a notched shape can be added to lens part 40. Alternatively, lens part 40 can have a cylindrical shape, or it can have a shape where the front end of a cylindrical shape is concave towards the back.

[0074] Since the refraction of the light emitted by the light-emitting part 30 can vary depending on the shape of the lens part 40, the light path of the light-emitting part 30 can be shaped in various ways, and in this way objectives such as the removal of a hot spot or ensuring the uniformity of the light can be achieved when the product is manufactured.

[0075] Meanwhile, a forward / backward length of the panel part 50 with respect to a section of the panel part 50 of the LED module according to the first embodiment 50, in which the first recess 52 is not formed, preferably has 7 mm, but the present disclosure is not limited thereto and can be modified in various ways within a range that can be obtained by an ordinary person in the art. LED module according to the second embodiment

[0076] Fig. Figure 23 is a conceptual view representing an LED module according to a second embodiment of the present disclosure. An LED module according to a second embodiment of the present disclosure is described with reference to Fig. 23 and 1 to 22 described.

[0077] The LED module according to the second embodiment of the present disclosure differs from the LED module according to the first embodiment by the presence of an inner lens 80 and a thickness of the panel part 50. Configurations that are the same as or correspond to those of the LED module according to the first embodiment are given the same or corresponding reference numerals and their detailed description is omitted.

[0078] As in Fig. As shown in Figure 23, the LED module according to the second embodiment of the present disclosure can further comprise the inner lens 80. The inner lens 80 can be arranged between the outer lens 60 and a panel part 50'.

[0079] Meanwhile, the vertical length of the inner lens 80 can correspond to the vertical length of the outer lens 60. Consequently, the vertical length of the inner lens 80 can correspond to the vertical lengths of the panel part 50', the circuit board part 20', and the cover part 10'.

[0080] Meanwhile, a forward / backward length of the panel part 50 with respect to a section of the panel part 50' of the LED module according to the second embodiment 50, in which no first recess 52' is formed, preferably has 2.5 mm, but the present disclosure is not limited thereto and can be modified in various ways within a range that can be obtained by an ordinary person in the art.

[0081] However, since the forward / backward length of the panel section is changed by 50', the relative size of the space occupied by the first cutout 52' can also change. LED module according to the third embodiment

[0082] Fig. Figure 24 is a conceptual view representing an LED module according to a third embodiment of the present disclosure. The LED module according to the third embodiment is described below with reference to Fig. 24 and 1 to 22 described.

[0083] The LED module according to a third embodiment of the present disclosure differs from the LED module according to the first embodiment in the form of a panel part 50” and a first optic 51a’. Configurations that are the same as or correspond to those of the LED module according to the first embodiment are given the same or corresponding reference numerals and their detailed description is omitted.

[0084] A vertical length of a circuit board part 20' of the LED module according to the third embodiment of the present disclosure can be less than a vertical length of the cover part 10. Then the panel part 50" can be configured such that it covers a side surface of the circuit board part 20'.

[0085] As an example, the panel part 50" can include a second recess 53 into which the circuit board part 20' is inserted. The second recess 53 can be connected to a first recess 52", and the vertical length of the second recess 53 can be greater than the vertical length of the first recess 52". The panel part 50" can then be configured to be adjacent to the cover part 10. Furthermore, the first recess 52" of the LED module according to the third embodiment can be shifted towards the center of the panel part 50" compared to the first recess 52" according to the first embodiment.

[0086] As in Fig. As shown in Figure 24, a first optic 51a' can comprise a first region 51c and a second region 51d. The first region 51c can be formed on a side surface of the circuit board part 20. The second region 51d can be formed on a front surface of the circuit board part 20. The second region 51d can be stepped off from the first region 51c. LED module according to the fourth embodiment

[0087] Fig. 25 and Fig. 26 represent an LED module according to a fourth embodiment of the present disclosure. Fig. Figure 25 is a perspective view showing the LED module according to the fourth embodiment of the present disclosure. Fig. 26 is a side view showing a side surface of Fig. 25 represents.

[0088] The LED module according to the fourth embodiment of the present disclosure differs from that of the first embodiment in a panel portion 50''. Consequently, apart from the differences described above, the fourth embodiment of the present disclosure can include all configurations of the first embodiment. Hereinafter, the same reference numerals are used for the same elements, and their repeated description is omitted.

[0089] Referring to Fig. 25 and Fig. 26 The panel part 50“' can comprise a light guide unit according to the fourth embodiment of the present disclosure.

[0090] The light guide unit can comprise several light output parts 57 that guide and output light emitted from the side surface of a light-emitting part 30'. The light guide unit can act to provide a path along which the light emitted from the side surface of a light-emitting part 30' is uniformly diffused and distributed. The shape and configuration of the light guide unit are not restricted as long as the light guide unit can guide the light emitted from the side surface of a light-emitting part 30' and output the light to the front, and the light guide unit can, for example, be implemented by a first light guide unit 54.

[0091] The panel part 50"' can include the first light guide unit 54.

[0092] The first light guide unit 54 can comprise several light guides 54a and the several light guides 54a can be configured to output the light emitted from the side surface of a light-emitting part 30' to the front and can be arranged radially with respect to the light-emitting part 30'.

[0093] In detail, the light-emitting part 30', which emits light through the side surface, can be located in the center, and the multiple light guides 54a can be arranged such that they extend from the side surface of the light-emitting part 30'. The rectilinear light can be emitted from the side surface of the light-emitting part 30', and the emitted light is fed into the multiple light guides 54a to be converted into surface light and can be output to the front.If the light is emitted not from the side surface of the light-emitting part 30' but to the front, the multiple light-emitting parts 30' must be provided such that they each correspond to the multiple light guides 54a, but the light-emitting part 30' of the present disclosure is configured to emit the light from the side surface, and thus the light can be emitted through the one light-emitting part 30' from the multiple light guides 54a.

[0094] Each of the multiple light guides 54a can comprise a light input surface 54b, into which light is fed from the light-emitting part 30', and a light output surface 54c, from which light fed into the light input surface 54b is emitted. Here, a lens part 40' can be formed on the light input surface 54b.

[0095] For example, the light guides 54a can be arranged such that they are spaced apart from the light-emitting part 30'. The light-intake surface 54b can be arranged such that it faces the side surface of the light-emitting part 30', and the light-output surface 54c can be arranged such that it faces the front. The light supplied through the light-intake surface 54b can be totally reflected on surfaces other than the light-output surface and can be emitted through the light-output surface 54c to the front.

[0096] As an example, the light-emitting part 30' can comprise four side surfaces that emit the light. Furthermore, four light guides 54a can be provided to correspond to the four side surfaces.

[0097] The light input surfaces 54b provided in the four light guides 54a can be arranged such that they each correspond to the four side surfaces of the light-emitting part 30. However, the number of side surfaces of the light-emitting part 30' is not limited to this and can be changed to various numbers, and the number of light guides 54a can also be changed to correspond to the number of side surfaces of the light-emitting part 30'.

[0098] As in the illustrated embodiment, the cross-sections of the optical fibers 54a that are perpendicular to their direction of extension can be circular. However, the cross-sectional shapes of the optical fibers 54a are not limited to this and can be modified into a variety of shapes, as long as the light emitted from the light input surface 54b can be emitted to the light output surface 54c. LED module according to the fifth embodiment

[0099] Fig. 27, Fig. 28, Fig. 29, Fig. 30, Fig. 31 to Fig. 32 represent an LED module according to a fifth embodiment of the present disclosure. Fig. Figure 27 is a perspective view showing the LED module according to the fifth embodiment of the present disclosure. Fig. Figure 28 represents the LED module according to the fifth embodiment of the present disclosure and is a view seen from below. Fig. 27. Fig. 29 represents a modification of the LED module according to the fifth embodiment of the present disclosure. Fig. 30 is a side view of Fig. 29.

[0100] Fig. 31 represents another modification of the LED module according to the fifth embodiment of the present disclosure. Fig. Figure 32 is a view that represents another modification of the LED module according to the fifth embodiment of the present disclosure.

[0101] The LED module according to the fifth embodiment of the present disclosure differs from that of the first embodiment in the panel part 50''. Consequently, the fifth embodiment of the present disclosure, apart from the differences described above, can include all configurations of the first embodiment. Hereafter, the same numbers are used for the same elements, and their repeated description is omitted.

[0102] Referring to Fig. 27, Fig. 28, Fig. 29, Fig. 30, Fig. 31 to Fig. 32 According to the fifth embodiment of the present disclosure, the panel part 50"' can comprise a light guide unit. Furthermore, according to the fifth embodiment, the light guide unit can be implemented by a second light guide unit 55.

[0103] The panel part 50"' can include the second light guide unit 55. The second light guide unit 55 can include a body part 56 and light output parts 57.

[0104] The light emitted from the side surface of a light-emitting part 30' can be fed into the body part 56. The body part 56 can include a light-intake surface 56a into which the light from the light-emitting part 30' is fed. The lens part 40' can be formed on the light-intake surface 56a.

[0105] The light output parts 57 can extend from the body part 56, and the multiple light output parts 57 can be provided to output the light supplied to the body part 56 to the front and can be arranged radially with respect to the body part 56. Here, each of the multiple light output parts 57 can comprise a light output surface 57a from which the light supplied by the light input surface 56a is output.

[0106] In detail, the body part 56 can be integrally formed with the light output parts 57, and the light output parts 57 can extend radially with respect to the body part 56. For example, if, as shown, four light output parts 57 are provided, the second light guide unit 55 can have a cross (+-) shape.

[0107] However, the shape of the second light guide unit 55 can change according to the number of light output parts 57.

[0108] For example, the body part 56 can have a concave section on which the light-emitting part 30' is located, and the light-intake surface 56a can be formed on the concave section. The light emitted by the light-emitting part 30' can be fed into the light-intake surface 56a and can be directed to the light-output parts 57.

[0109] Meanwhile, the second light guide unit 55 can further comprise a deposition surface 58. The deposition surface 58 can be provided at a corner section where adjacent light output parts 57 meet, and a material that reflects the light can be deposited thereon.

[0110] Since the light-reflecting deposition surfaces 58 are thus provided at sections where the multiple light-emitting parts 57 meet, the light can be prevented from being scattered through the corner sections. Consequently, the light emitted by the light-emitting part 30' is intensely emitted to the light-emitting parts 57, thereby improving the optical efficiency. For example, the material deposited on the deposition surface 58 can be aluminum (Al), but the present disclosure is not limited to this, and various reflective materials capable of reflecting light can be applied.

[0111] Meanwhile, according to the fifth embodiment of the present disclosure, the light-intake surface 56a can have different shapes. Depending on the shape of the light-intake surface 56a, the irradiation distance or the degree of scattering of the light emitted by the light-emitting part 30' can change. In detail, the refraction of the light emitted by the light-emitting part 30' can change according to the shape of the light-intake surface 56a, and the path of the light can change accordingly. Consequently, the shape of the light-intake surface 56a can be determined according to a desired objective, such as ensuring the uniformity of light.

[0112] For example, the light input surface 56a can be referred to Fig. 27 and Fig. 28 are divided into the multiple light input parts 56b, each corresponding to the multiple light output parts 57, and the width of each of the light input parts 56b can decrease towards one end of the corresponding light output part 57.

[0113] If, for example, the light-emitting part 30' comprises four side surfaces and four light-output parts 57 are provided, the light-input surface 56a can encompass the four light-input parts 56b corresponding to the light-output parts 57. The width of each of the light-input parts 56b can decrease towards the light-output part 57. Consequently, the light emitted by the light-emitting part 30' is intensely directed towards the light-output parts 57 to reach a considerable distance. That is, due to the shapes of the light-input parts 56b, the light emitted by the light-emitting part 30' can be guided to the ends of the light-output parts 57.

[0114] Furthermore, the light input surface 56a can be used with reference to Fig. 29 and Fig. 30 scattering projections 56c comprise, which are repeatedly formed along a circumferential direction of a side surface of the light-emitting part 30'.

[0115] For example, the shape of the light-intake surface 56a, obtained by cutting it in a direction perpendicular to the side surface of the light-emitting part 30', can be circular, and the scattering projections 56c can be repeated on the light-intake surface 56a. Due to the scattering projections 56c, the light fed into the light-intake surface 56a from the light-emitting part 30' can be scattered uniformly towards the light-output parts 57. Consequently, the uniformity of brightness of the light emitted through the light-output surface 57a can be improved.

[0116] However, with reference to Fig. 29 and Fig. 30 Each of the light output parts 57 further comprises a reflective surface 57b. The reflective surface 57b can be provided on a surface opposite the light output surface 57a, and the light supplied from the light input surface 56a can be reflected to the light output surface 57a. Here, a reflective optic 57c with a fine projection shape can be formed on the reflective surface 57b.

[0117] In detail, the light-emitting surface 57a can be formed on a surface facing the front of the light-emitting part 57, and the reflective surface 57b can be formed on a surface facing the rear of the light-emitting part 57. The reflective optics 57c can be recessed towards the front, and multiple reflective optics 57c can be provided on the reflective surface 57b. For example, the width of the reflective optics 57c can decrease towards the front, but the shape of the reflective optics 57c is not limited to this.

[0118] The reflective optics 51c can reflect the light emitted from the side surface of the light-emitting part 30 in such a way that the light is reflected towards the front.

[0119] Meanwhile, an LED module according to a modification of the fifth embodiment of the present disclosure with reference to Fig. 31 and Fig. 32 further comprise a reflection unit. The reflection unit can be arranged on a rear side of the light guide unit and can be configured to reflect the light emitted by the light-emitting part 30'. In addition, the reflection unit can comprise several reflection covers 11, 12, 13 and 14, which are separate from one another.

[0120] Here the reflection unit can be implemented by the cover part 10 or the circuit board part 20' and can also be implemented by a separate element that is placed on the back of the light guide unit. Fig. Figure 31 presents an example in which the reflection unit is implemented by a cover part 10'. Furthermore, it presents Fig. 32 presents a conceptual view that represents a concept of the reflection unit according to an embodiment of the present disclosure.

[0121] For example, the reflection unit can refer to Fig. 31 is implemented by the cover part 10', and the cover part 10' can be divided into multiple reflective covers 11, 12, 13, and 14. For example, if the light is emitted from the four side surfaces of the light-emitting part 30', the cover part 10' can comprise the first reflective cover 11, the second reflective cover 12, the third reflective cover 13, and the fourth reflective cover 14, which are separated from each other. Consequently, the multiple reflective covers 11, 12, 13, and 14 can be configured to reflect the light reflected from the multiple side surfaces of the single light-emitting part 30' to the front.

[0122] Although only one reflector is used, since the light source of the existing optical system is configured to emit light towards the front, the light-emitting part 30' according to the present disclosure is configured to emit light from the multiple side surfaces, and thus the light emitted towards the side surfaces can be reflected towards the front using the multiple reflection covers 11, 12, 13 and 14.

[0123] Furthermore, since in the reflection unit according to the present disclosure the several reflection covers 11, 12, 13 and 14 are separated from each other, the path along which the light is reflected can be individually controlled by designing the reflection covers individually. LED module according to the sixth embodiment

[0124] Fig. 33, Fig. 34 to Fig. 35 represent an LED module according to a sixth embodiment of the present disclosure. Fig. Figure 33 is a conceptual view representing the LED module according to the sixth embodiment of the present disclosure. Fig. Figure 34 is a partially enlarged cross-sectional view of Fig. 33. Fig. 35 is a view that represents a state in which a pin element is fitted with a cover part in Fig. 34 is coupled.

[0125] The LED module according to the sixth embodiment of the present disclosure may differ from that of the first embodiment in the coupling of the cover part 10', the circuit board part 20" and a panel part 50"". Consequently, the sixth embodiment of the present disclosure may, apart from the differences described above, include all configurations of the first embodiment. Hereinafter, the same reference numerals are used for the same elements, and their repeated description is omitted.

[0126] Referring to Fig. 33, Fig. 34 to Fig. 35 The LED module according to the sixth embodiment of the present disclosure may further comprise a pin element 90.

[0127] The pin element 90 is configured to pass through the panel part 50", the circuit board part 20", and the cover part 10". The panel part 50", the circuit board part 20", and the cover part 10" can be coupled together by the pin element 90.

[0128] In detail, the pin element 90 can comprise a head 91, a pin body 92, an extension part 93 and a mounting projection 94.

[0129] The head 91 is configured to abut a surface of the panel part 50". The pin body 92 can be formed on one side of the head 91 and can be configured to pass through the panel part 50".

[0130] The extension part 93 can extend from the pin body 92 and can be configured to pass through a mounting hole 12a formed in the cover part 10'. Furthermore, the mounting projection 94 projects from an outer surface of the extension part 93 and can be configured to bear elastically against the cover part 10'.

[0131] In detail, the cover part 10' can include a retaining plate 11a configured to hold the circuit board part 20" and the panel part 50"", and in which the mounting hole 12a, through which the extension part 93 passes, is formed. Furthermore, a pin hole 59b can be formed in the panel part 50"" and a through hole 21 can be formed in the circuit board part 20".

[0132] The pin element 90 can pass successively through the pin hole 59b, the through hole 21, and the mounting hole 12a. For example, the head of the pin element 90, in its assembled state, can be designed to be larger than the pin hole 59b in order to be positioned on a surface of the panel part 50", and the pin body 92 can be inserted into and positioned in the pin hole 59b and the through hole 21. Furthermore, the extension part 93 can pass through the mounting hole 12a of the cover part 10".

[0133] Here, the outer diameter of the extension part 93 can be configured to be larger than that of the pin body 92. Furthermore, the outer diameter of the extension part 93 can be configured to be smaller than the inner diameter of the mounting hole 12a. When the extension part 93 is inserted into and positioned in the mounting hole 12a, the mounting projection 94 can be configured to abut the cover part 10'. Consequently, the pin element 90 can be mounted in the cover part 10', and the panel part 50", the circuit board part 20", and the cover part 10' can be installed.

[0134] Since, according to the sixth embodiment of the present disclosure, the panel part 50'''', the circuit board part 20", and the cover part 10' are mounted by the pin element 90 in this way, they can be mounted precisely at predetermined positions on the elements during assembly. Furthermore, since the mounting projection 94 of the pin element 90 is mounted such that it abuts the cover part 10', the ease of assembly is improved.

[0135] Meanwhile, the retaining plate 11a can be used with reference to Fig. 34 and Fig. 35 comprising a stepped surface 13a formed on a surface facing the circuit board part 20" and formed on a circumferential region of the mounting hole 12a, and an inclined surface 14a formed on a section where the stepped surface 13a and the mounting hole 12a meet, such that it is inclined.

[0136] The embodiment of the present disclosure can, by means of the stepped surface 13a, prevent the circuit board part 20" and the cover part 10' from being spaced apart from each other by the pin body 92 when the pin element 90 is mounted. That is, the mounting plate 11a can reduce the mounting tolerance of the pin element 90 when it is mounted, due to the stepped surface 13a. Furthermore, in the embodiment of the present disclosure, the pin element 90 can be easily inserted into and positioned in the mounting hole 12a because of the inclined surface 14a.

[0137] Meanwhile, several mounting projections 94 can be arranged such that they are spaced apart from one another along a circumferential direction and / or an extension direction of an outer surface of the extension part 93. Furthermore, the mounting projections 94 can extend such that they are inclined further away from an outer surface of the extension part 93 in the direction of the head 91.

[0138] For example, as in the illustrated embodiment, several mounting projections 94 can be provided along the circumferential direction of the outer surface of the extension part 93, and several mounting projections 94 can also be provided along the extension direction of the mounting projections 94. Consequently, the pin element 90 can be firmly mounted in the retaining plate 11a of the cover part 10'. Since the mounting projections 94 are also designed to be inclined, the pin element 90 can be easily inserted into the mounting hole 12a. LED module according to the seventh embodiment

[0139] Fig. 36, Fig. 37, Fig. 38, Fig. 39 to Fig. 40 represent an LED module according to a seventh embodiment of the present disclosure. Fig. Figure 36 is a conceptual view representing the LED module according to the seventh embodiment of the present disclosure. Fig. Figure 37 represents the LED module according to the seventh embodiment of the present disclosure and is a partially enlarged perspective view of Fig. 36. Fig. 38 is a cross-sectional view showing a cross-section of Fig. 37 represents. Fig. Figure 39 represents the LED module according to the seventh embodiment of the present disclosure and is a partially enlarged perspective view of Fig. 36. Fig. 40 is a cross-sectional view showing a cross-section of Fig. 39 represents.

[0140] The LED module according to the seventh embodiment of the present disclosure may differ from that of the first embodiment in the coupling of a cover part 10", the circuit board part 20", and a panel part 50'''''. Consequently, the seventh embodiment of the present disclosure may, apart from the differences described above, include all configurations of the first embodiment. Hereinafter, the same reference numerals are used for the same elements, and their repeated description is omitted.

[0141] Referring to Fig. 36, Fig. 37 to Fig. 38 The LED module according to the seventh embodiment of the present disclosure can comprise the cover part 10", in which the insertion hole 17a is formed, the circuit board part 20", which is connected to a front side of the cover part 10", the light-emitting part 30, which is electrically connected to the circuit board part 20", which is arranged on the front side of the circuit board part 20" and is configured to emit light through its side surface, and the panel part 50''''', which is arranged on the front side of the circuit board part 20" and is mounted with the cover part 10", and an insertion projection 59a, which is inserted into the insertion hole 17a, can be formed in the panel part 50'''''.

[0142] In detail, the cover part 10" can include a retaining plate 11a, which holds the circuit board part 20" and the panel part 50'''', and a side wall 16a, which extends along a circumference of the retaining plate 11a towards the panel part 50'''''. Furthermore, the insertion projection 59a can be inserted into the insertion hole 17a.

[0143] For example, several side walls 16a can be provided along a circumference of the retaining plate 11a and a pair of insertion holes 17a can be formed on mutually facing side walls 16a of the several side walls 16a.

[0144] The insertion projection 59a can be formed in the panel part 50'''' in such a way that it corresponds to it.

[0145] When the cover part 10” and the panel part 50’'''' are mounted, the insertion projection 59a is inserted into the insertion hole 17a, thus completing the assembly. Assembly can then proceed while the circuit board part 20” is inserted between the cover part 10” and the panel part 50’''''.

[0146] Since, according to the fifth embodiment of the present disclosure, the insertion projections 59a, which protrude from opposite ends of the panel part 50'''', are mounted in this way to be inserted into the insertion holes 17a formed in the cover part 10", the ease of assembly can be improved. Furthermore, the panel part 50'''' and the cover part 10" can be precisely mounted at predetermined positions during assembly.

[0147] However, with reference to Fig. 38. An extension hole 15a, extending from the insertion hole 17a, is formed in the retaining plate 11a. Due to the extension hole 15a, the insertion projection 59a can be easily inserted into the insertion hole 17a.

[0148] Meanwhile, the cover part can be 10" with reference to Fig. Figures 36 and 39 to 40 comprise the retaining plate 11a, which holds the panel part 50'''', and the side wall 16a, which includes a stop hook 18a extending from a circumference of the retaining plate 11a towards the panel part 50''''', projects towards the panel part 50''''' and is configured to be elastically deformed by an external force. Furthermore, the panel part 50''''' can be coupled such that it abuts elastically between the stop hook 18a and the retaining plate 11a.

[0149] In detail, the hook hole 19a can be formed in the side wall 16a, and the stop hook 18a can be formed on a section where the hook hole 19a is formed. When the panel part 50''''' and the cover part 10" are mounted, the stop hook 18a can be pressed through the panel part 50''''', causing it to deform elastically and widen outwards. Once the mounting of the panel part 50''''' is complete, the stop hook 18a can return to its original position to press against the panel part 50'''''.

[0150] For example, the hook hole 19a and the stop hook 18a between a pair of insertion holes 17a can be configured to face each other. Consequently, when the panel part 50''''' and the cover part 10" are mounted, the insertion projections 59a provided at opposite ends of the panel part 50''''' can be inserted into the insertion holes 17a, and an intermediate section of the panel part 50''''' can be coupled such that it elastically abuts the stop hook 18a. Due to the structure, the panel part 50''''' can also be attached to the cover part 10".

[0151] However, with reference to Fig. 36 The LED module according to the seventh embodiment of the present disclosure further comprises an adhesive element 95. The adhesive element 95 can be attached to a surface of the mounting plate 11a facing the panel part 50''''' and to a surface of the panel part 50''''' facing the mounting plate 11a.

[0152] For example, the adhesive element 95 can be a double-sided adhesive tape. However, the type of adhesive element 95 is not limited to this, and various types can be applied as long as the panel part 50''''' and the retaining plate 11a can be glued together.

[0153] Meanwhile, they Fig. 41, Fig. 42 to Fig. 43 examples are given of which LED modules are applied according to the sixth and seventh embodiments of the present disclosure. Section A of Fig. 41 is a section in which the insertion projection 59a is formed in the panel part 50'''', and section B of Fig. 41 represents a state in which the pin element 90 passes through the panel part 50'''' and the circuit board part 20". Section A' of Fig. Figure 42 represents a state in which the insertion projection 59a of the panel part 50""' is inserted into the insertion hole 17a of the cover part 10", and section B' of Fig. Figure 42 shows an example in which the pin element 90 is mounted in the mounting hole 12a of the cover part 10". Fig. Figure 43 shows an example in which the pin element 90 is mounted.

[0154] As in the embodiments shown, the sixth and seventh embodiments according to the present disclosure are not contradictory; rather, a configuration comprising both the sixth and seventh embodiments is also possible. For example, an LED module according to another embodiment of the present disclosure may comprise both a mounting structure based on the pin element 90 and a mounting structure based on the insertion projection 59a and the stop hook 18a. <fahrzeug>

[0155] A vehicle comprising LED modules according to the first to third embodiments of the present disclosure is described below. Here, the vehicle is not simply limited to four-wheeled vehicles and must be designed to generally include a transprotein direction, such as a two-wheeled vehicle. The vehicle may comprise a vehicle body and an LED module.

[0156] As in Fig. As shown in Figure 3, the LED module can comprise the light-emitting part 30, the lens part 40, and the panel part 50. The light-emitting part 30 can be configured to emit light through one of its side surfaces. The light-emitting part 30 can be a 4F LED. The lens part 40 can surround the side surfaces of the light-emitting part 30. The lens part 40 can be inserted into and arranged within the panel part 50. The optics 51 with the fine protrusion can be formed on an outer surface of the panel part 50.

[0157] Since, according to the embodiment of the present disclosure, no reflective plate is necessary and the lens part can be glued to the cover part, the volume of the product can be reduced and the weight of the product can be reduced.

[0158] Since, according to the embodiments of the present disclosure, the light can be emitted from the side surfaces of the light-emitting part and the several fine optics reflect the light at different locations and at different angles, a uniform brightness can be ensured.

[0159] According to the embodiments of the present disclosure, the light from the multiple light guides can be emitted through a light-emitting part.< / fahrzeug>

Claims

[1] LED module which features: a cover part (10, 10', 10''); a circuit board part (20, 20', 20'') which is connected to a front side of the cover part (10, 10', 10''); a light-emitting part (30, 30') arranged on a front face of the circuit board part (20, 20', 20'') and electrically connected to the circuit board part (20, 20', 20'') and configured to emit light through a side surface of the light-emitting part (30, 30'); and a panel part (50, 50', 50'', 50'''', 50'''', 50'''') arranged on the front of the circuit board part (20, 20', 20'') comprising a light guide unit with multiple light output parts (57) configured to guide and output light emitted from the side surface of the light-emitting part (30, 30'). [2] LED module according to claim 1, further comprising: a lens portion (40) arranged on a front side of the circuit board portion (20, 20', 20'') and surrounding the light-emitting portion (30, 30'); and an optic (51) which together with the lens part on the panel part (50, 50', 50'', 50'''', 50'''', 50'''') has a fine protrusion shape. [3] LED module according to claim 2, wherein the optics (51) comprises a first optic (51a, 51a') arranged on a rear surface of the panel part (50, 50', 50'', 50'''', 50'''', 50''''''), recessed towards a front of the panel part (50, 50', 50'', 50'''', 50'''', 50'''') and configured to reflect the light emitted from the side surface of a light-emitting part (30, 30') and to direct the reflected light towards the front of the panel part (50, 50', 50'', 50'''', 50'''', 50''''''), wherein the first optic (51a, 51a') has a shape whose vertical length is determined along the distance from the front of the panel part (50, 50', 50'', 50'''', 50'''', 50'''') decreases. [4] LED module according to claim 3, wherein the optics (51) further comprises a second optics (51b) arranged and projecting on a front surface of the panel part (50, 50', 50'', 50'', 50'''', 50'''') and configured to direct the light emitted from the side surface of the light-emitting part (30, 30') towards the front of the panel part (50, 50', 50'', 50'''', 50'''', 50''''). [5] LED module according to any one of claims 1 to 4, wherein: a vertical length of the circuit board part (20) corresponds to that of the cover part (10), and a vertical length of the panel part (50) corresponds to that of the circuit board part (20). [6] LED module according to any one of claims 1 to 5, further comprising an outer lens (60) arranged and spaced apart on a front surface of the panel part (50), wherein a vertical length of the outer lens (60) corresponds to that of the panel part (50). [7] LED module according to any one of claims 2 to 6, wherein: the panel part (50, 50', 50'') comprises a first recess (52, 52', 52'') formed on a rear surface of the panel part (50, 50', 50'') and having a shape corresponding to a shape of the lens part (40), and the lens part (40) is arranged at the first recess (52, 52', 52''). [8] LED module according to claim 3, wherein: a vertical length of the circuit board part (20) is smaller than that of the cover part (10), the panel part covers one side surface of the circuit board part (20), and the first optic (51a') comprises a first area (51c) formed on the side surface of the circuit board part (20) and a second area (51d) formed on a front surface of the circuit board part (20) and stepped off from the first area (51c). [9] LED module according to claim 8, wherein: the panel part (50'') further comprises a second recess (53) formed on a rear surface of the panel part (50'') and having a size corresponding to that of the circuit board part (20'), and the circuit board part (20') is arranged at the second recess (53). [10] LED module according to any one of claims 2 to 9, wherein the lens part has a semi-elliptical cross-sectional shape. [11] LED module according to any one of claims 1 to 10, wherein: the panel part (50''') comprises a first light guide unit (54), and the first light guide unit (54) comprises several light guides (54a) arranged radially with respect to the light-emitting part (30') and configured such that the light emitted from the side surface of the light-emitting part (30') is output to the front of the panel part (50'''). [12] LED module according to claim 11, wherein each of the multiple light guides (54a) comprises: a light-intake surface (54b) configured to receive the light emitted by the light-emitting part (30'); and a light output surface (54c) configured to output the light received at the light input surface (54b). [13] LED module according to claim 12, wherein: the light-emitting part (30') comprises four side surfaces configured to emit light, and the multiple light guides comprise four light guides (54a), each provided corresponding to the four side surfaces. [14] LED module according to claim 13, wherein each of the four light guides (54a) has a circular cross-section. [15] LED module according to any one of claims 1 to 14, wherein the panel part (50''') comprises a second light guide unit (55) comprising: a body part (56) configured to receive the light emitted from the side surface of the light-emitting part (30'); and several light output parts (57) which extend radially in relation to the body part (56) and are arranged and configured to emit the light received at the body part (56) to a front face of the panel part (50'''). [16] LED module according to claim 15, wherein: the body part (56) includes a light input surface (56a) configured to receive the light emitted by the light-emitting part (30'), and Each of the multiple light output parts (57) comprises a light output surface (57a) configured to output the light received at the light input surface (56a). [17] LED module according to claim 15, or 16, wherein the second light guide unit (55) further comprises: a deposition surface (58) provided at a corner section of the second light guide unit where two adjacent light output parts (57) are connected; and a reflective material arranged on the corner section of the second light guide unit (55). [18] LED module according to claim 16 or 17, wherein: the light input surface (56a) is divided into several light input parts (56b), each corresponding to the several light output parts (57), and the width of each of the light input parts (56b) decreases towards one end of a corresponding light output part (57). [19] LED module according to one of claims 16 to 18, wherein the light input surface (56a) comprises scattering projections (56c) arranged along a circumferential direction of the side surface of the light-emitting part (30'). [20] LED module according to one of claims 16 to 19, wherein the light output part (57) comprises: a reflective surface (57b) provided on a surface opposite the light output surface (57a) and configured to reflect the light received at the light input surface (56a), and a reflective optic (57c) which is arranged on the reflective surface (57b) and has formed a fine protrusion shape.

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